M42 screw mount lens to Sony E mount NEX adapter Macro Focusing Helicoid - for A9 II A7 IV A6600
This is macro focusing adapter, extension of helicoid ring is about 26mm to 56mm.
Also, it is very well made (of brass and aluminum) adapter, which will allow you to use Carl Zeiss, Pentax or other brands M42 (42mm x 1.0) screw mount lenses on Sony E mount APS-C camera. (For full frame E mount camera, cropping image is needed.)
Best fit for macro photography, also support focusing infinity at closure.
Switching on "Release w/o lens" is needed on E mount cameras. Switching shooting mode to M (manual) is recommended.
You can also use an M39-M42 adapter ring (also available in our store) to fit M39 lenses with this adapter.